Obesity is often associated with a number of diseases, such as hypertension. High blood lipids. Impaired glucose tolerance, etc. Several new studies have again shown that people who exercise regularly and appropriately (after assessment, risk assessment and program design before exercise); who are not sedentary (no more than one hour at a time and no more than six hours a day) have a lower risk of obesity compared to those who are sedentary and less active, and that combining exercise and not being sedentary is better. The study longitudinally compared the two habits, appropriate exercise and not sitting, and the combination of more appropriate exercise and not sitting at work or in spare time was more effective in reducing the risk of obesity than performing it alone. Physical activity and sedentary time are two separate but related lifestyle factors, both of which are effective in reducing obesity, metabolic disorders, and type 2 diabetes, cardiovascular disease and all-cause mortality. Many manual workers also often require more time to be sedentary, and those who regularly work at computers sit for even longer periods of time. These workers need experts to design exercise programs, assess and reduce their risk, including the sitting posture of different workers by experts in diabetes and other disease prevention and ergonomic engineering.